Tobacco pipe



V. R. ABRAMS TOBACCO PIPE May 16, 1933.

Filed April 29, 1931 Patented May 16, 1933 om'rro STATES VICTOR RAPHAEL ABRAMfiOF iz'rwnswrcmenonera TOBACCO PIPE I Application filed April 29,

impetus tothe passage of smoke from the pipe bowl to the mouth-piece or tip of the pipe and also induces a return flow of smoke and products of condensation from a chamber wherein nicotine and other. condensed :1 tobacco-extracts are deposited and from which they are carried by the enforced circulation into another chamber wherein they are collected, and the circulating gases are lowered intemperature and reintroduced into the smoke conduit leading from the pipe bowl and delivered through and from the mouth-piece or tip of the pipe stem,-the oh- 1 ject being to prevent nicotine reaching the mouth of the smoker through the mouth- 0 piece or tip of the pipe stem, and also prowhich fouling of the pipe is less likelyto occur from the nicotine and other fluids coming in contact with tobacco inthe bowl, and'in which the best tobacco flavours are obtainable.

To the accomplishment of the foregoing and such other objects as may hereinafter appear the invention consists in the features Figure 2 a longitudinal section through a.

portion of the stem, on an enlarged scale; Figure 3 a cross section on the line 83 arrows;

Figure 4 a longitudmal section showing a modified form;

modification, on an enlarged scale.

pipe bowl; 2 its stem, and 3 its mouth-piece or tip. The stem is formed with a longitudinally internal chamber 4. Within the chamher is positioned a longitudinally extending of Figure 2, looking in the direction of the- Figure 5, a similar section through another I mg the pipe, elther with the mouth-piece 1I1 In the drawlng the numeral 1 designates a 1931. Serial No. 533,831.

tube 5 having one end threaded or otherwise attached to make a tight joint with the base of the bowl and with which it is in communication; The other end of the tube is provided with a disk 6 which functions as ac partition set back from the adjacent end of the pipe mouth-piece or tip so as to form a chamber 7, the disk or partition having a diameter substantially that of the chamber 4 and has in its periphery a notch of open-a? ing 8 which establishes communication between the chambers 4 and 7; The tube 5 is restricted adjacent one end so as to make in a k-erf 10 to receive the end of a screw-driver to thread the end of the tube into the base of the bowl 1. Under the construction described?! vide a cooler smoke, and provide a pipein when suction is created in the tube 5, by inhaling throughthe bore of the mouth-piece 3, smoke from tobacco in bowl 1 is drawn through tube 5, and at the same timemore or less vacuum is created in chamber 4 by their! air drawn therefrom through orifice 9 into tube 5 and ejected from tube 5 into, chamber 7 under substantiallytheVenturi principle. In chamber 7 the nicotine and other substances of a volatile nature are deposited and-f the flavors of the tobacco in the bowl delivered to the smoker deprived of the nicotine and. other .objectionabletobacco extracts. The nicotine and other tobacco extracts de- M posited in chamber 7 pass fromthat chambers? into chamber 4, their passageinto chamber 4 being promoted by the vacuum in that chamber andthe suction exerted through tube 5.

The chamber 4 serves as a storage or-collecting. chamber for the-nicotine and other vola- 9 tilesubstances deposited in the settling chamber? until it is desired to remove deposits from chamber .4 which may be done by turning, the pipe, stem down, and jarring or shak- With the result that a purer and sweeter smoke is obtainable; and nicotine and other distasteful concentrates are prevented from V passing into the mouth of the smoker through the mouth-piece of the pipe because they are deposited in the settling chamber 7 and finally transferred to the storage or collecting chamber 4, under the influence of suction and vacuum as before mentioned.

The construction illustrated in Figure 1 is substantially the same as shown in Figures 1. and 2 of the drawing except that the tube 4 is without the restricted portion as in Figures 1 and 2, and the threaded end of the tube is screwed into a screw-plug 11 threaded into the base of the pipe bowl.

In the modification shownlin Figure 5, the smoke conducting tube 5, leading from the pipe bowl, instead of having anorifice in its wall at the end next to the mouth-piece of the pipe has an orifice in it adjacent the end that is attached to the bowl, and a pipe 12 leads from it towards its other end where it opens into the chamber 4, and another pipe 13 leads from thesettling chamber 7, and opens into chamber 4 at a point adjacent to the pipe bowl as illustrated.

In this'modification the disk or partition 6 is formed with a port 14 provided with a valve 15 which will be normally closed by contact of theend of mouth-piece 3-therewith "as shown, the stem 16 ofthe valve being in several modificationsof the-invention but it is to be understood that the features may be otherwise varied and that I am not limited to such details except as the same may be expressed in the appended claims.

- Having described my invention and set forth its merits, what I claim is 1. Ina tobacco-pipe comprising a bowl for tobacc0,'a' pipe stem, and a mouth-piece, the

"stem being formed with a longitudinally disposed chamber; a smoke conducting tube having an opening therein, positioned within said chamber and in communication with the bowl of the pipe (and a diaphragmpartition,

having an opening'therein, positioned at one end of said tubefto form a settling chamber between the partition and adjacent end of the mouthpiece in communication with the chamber of the pipe stem, the smoke conducting tube also being in communication with the chamber of the pipe stem, whereby suction through the smoke conducting tube creates circulation of gases between 'thesettling chamber and chamber of the pipe stem and condensable products are intercepted in the settling chamber and may be transferred to the chamber of the pipe stem.

2. In a tobacco-pipe comprising a bowl for tobacco, a pipe stem, and a mouth-piece, the

stem being formed with a longitudinally disposed chamber; a smokeconducting tube positioned within said chamber in communication with the bowl of the pipe and having an opening therein in communication with the chamber and a diaphragm partition posichamber and chamber of the pipe stem through saidport.

3. In a tobacco-pipe comprising a bowlifor' tobacco, a pipe stem, and a mouth-piece,.the 7 stem being formedwith a' longitudinally disposed chamber; a Venturi tube having an opening therein and positioned "within the chamber and in communication therewithand with the bowl of the pipe to constitutea smoke conducting tube, and provided with an en largement at one end to forma settling-cham ber between it and the adjacent end of the mouth-piece, said enlargement having an opening, whereby suction through the tube creates circulation of gases between the settling chamber and chamber of the pipe stem and condensable products are -intercepted in the settling chamber, whereby said settling chamber has communication with the chamber in which the Venturi tube is positioned through the opening in the enlargement.

Intestimony whereof I aflix'my signature.

VICTOR RAPHAEL ABRAMS. 

